EP1875757B1 - Method for the management of a peripheral unit by a sim card in wireless communication terminals, and peripheral unit for implementing the method - Google Patents

Method for the management of a peripheral unit by a sim card in wireless communication terminals, and peripheral unit for implementing the method Download PDF

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Publication number
EP1875757B1
EP1875757B1 EP05744877A EP05744877A EP1875757B1 EP 1875757 B1 EP1875757 B1 EP 1875757B1 EP 05744877 A EP05744877 A EP 05744877A EP 05744877 A EP05744877 A EP 05744877A EP 1875757 B1 EP1875757 B1 EP 1875757B1
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EP
European Patent Office
Prior art keywords
unit
peripheral unit
terminal
subscriber identity
sim
Prior art date
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Not-in-force
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EP05744877A
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German (de)
English (en)
French (fr)
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EP1875757A1 (en
Inventor
Claudio Borean
Tiziana Tambosso
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Telecom Italia SpA
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Telecom Italia SpA
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Publication of EP1875757A1 publication Critical patent/EP1875757A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0853—Network architectures or network communication protocols for network security for authentication of entities using an additional device, e.g. smartcard, SIM or a different communication terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/04—Key management, e.g. using generic bootstrapping architecture [GBA]
    • H04W12/043—Key management, e.g. using generic bootstrapping architecture [GBA] using a trusted network node as an anchor
    • H04W12/0431—Key distribution or pre-distribution; Key agreement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/30—Security of mobile devices; Security of mobile applications
    • H04W12/35—Protecting application or service provisioning, e.g. securing SIM application provisioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/18—Interfaces between hierarchically similar devices between terminal devices

Definitions

  • the present invention refers to wireless communication terminals, and more particularly it concerns a method of managing a peripheral unit, such as a memory card, by a subscriber identity unit of one such terminal, as well as the peripheral unit capable of being so managed.
  • a peripheral unit such as a memory card
  • subscriber identity unit is used herein to denote a terminal component having, inter alia, user identification functions when the user tries to become connected to a communication network.
  • a widely diffused example is a cellular phone equipped with a digital camera and a removable memory card for storing the pictures shoot by the camera.
  • a terminal equipment controls the subscriber identity unit and the peripheral unit (e.g. a memory card) through separate physical and logical channels, and acts on these peripherals as a master in order to perform services which exploit their features separately, i.e. the terminal equipment keeps always the control of the communication.
  • the peripheral unit e.g. a memory card
  • a mobile phone exchanges data with the SIM card through a standard interface defined in the 3GPP TS 51.011, while a memory card in the same terminal communicates through its proprietary protocol which depends on the memory card type (i.e. multimedia card, secure Digital TM card, memory stick TM ).
  • a subscriber identity unit the SIM card in 2nd generation mobile terminals or the Universal SIM, U-SIM card in 3rd generation mobile terminals
  • a peripheral unit like a memory card
  • EP 0 820 178 A discloses a SIM card in which the radio transceiver allows using the terminal for monetary transactions.
  • WO 01/80193 A discloses a SIM card in which the radio transceiver is used for interrogating meters of utility companies.
  • WO 99/59360 A discloses a SIM that can be used by different terminals and that is associated with a wireless communication means for transmitting data, including identity data, to one of such terminals: data transmission can take place in ciphered form.
  • US 6,405,278 B and EP 1 001 358 A disclose flash memories equipped with transceivers for data exchange between the flash memory card and another device.
  • WO 2004/002176 A1 discloses a system and a method for allowing mobile devices such as Personal Digital Assistants (PDA), laptop computers, handheld devices, etc., to simultaneously access a SIM
  • the SIM contains a wireless transceiver, and the SIM may be located within a mobile phone, or it may be a standalone device.
  • the mobile devices use a wireless protocol, such as Bluetooth to retrieve identification information from the SIM.
  • SIM includes also the U-SIM and other subscriber identity modules, i.e., modules designed to be used in combination with terminals of a communication network, typically a wireless communication network, to provide at least a user identification and authentication function.
  • a terminal-independent communication between the SIM and a peripheral unit could allow the network operator to manage, through the SIM, applications residing on the peripheral unit, without being constrained by the terminal characteristics: an example could be the management of a memory card with ancillary hardware accelerator functions (e.g. for data ciphering) as a data memory or for multimedia functions.
  • ancillary hardware accelerator functions e.g. for data ciphering
  • the Applicant has tackled the problem of providing a peripheral unit whose utilization is subject to some check about the subscriber's authorisation, so that for example a memory card can be used for storing sensitive or private data.
  • the Applicant has found that this problem can be solved by establishing a wireless connection between the SIM card, which stores the information for user authentication, and the peripheral unit (e.g. the memory card), thus allowing both the check mentioned above and a direct and secure communication between them.
  • the SIM card which stores the information for user authentication
  • the peripheral unit e.g. the memory card
  • the invention relates to a method of management of a peripheral unit by means of a subscriber identity unit of a terminal of a communication network, via a terminal-independent communication between the peripheral unit and the subscriber identity unit, as described in Claim 1.
  • the invention relates to a peripheral unit that can be managed by a subscriber identity unit of a terminal of a communication network, via a terminal-independent communication between the peripheral unit and the subscriber identity unit, as described in Claim 13.
  • a method for the management of a peripheral unit by a subscriber identity unit of a communication terminal includes:
  • a peripheral unit allowing implementation of the method includes a client application in a control part of a radio transceiver provided in said peripheral unit, said client application being arranged to communicate, via said radio communication, with a server application in a control part of a corresponding radio transceiver module provided in a subscriber identity unit for at least the recognition and authentication of said peripheral unit by said subscriber identity unit.
  • the transceiver modules are transceivers for Personal Area Network (PAN) applications and are based on the ZigBee TM technology.
  • Figs. 1A and 1B are a front and a rear view, respectively, of a cellular phone 1 having a SIM card 2 and a removable peripheral unit 3, e. g. a flash memory card.
  • Flash memory cards commonly used in association with a cellular phone are for instance the Multimedia Memory Card (MMC), the Secure Digital (SD) Card, the SmartMedia Card or the CompactFlash (CF) card.
  • MMC Multimedia Memory Card
  • SD Secure Digital
  • CF CompactFlash
  • cards 2, 3 are further equipped with respective radio transceivers, schematised in these Figures by antennas 4, 5, allowing a terminal-independent communication between cards 2, 3 for the management of memory card 3 by SIM 2 according to the invention.
  • transceivers 4, 5 are transceivers for Personal Area Network (PAN) applications: this choice is dictated by the fact that such transceivers are devices that can be strongly miniaturised and that offer the possibility of enabling new value added services, so that they are suitable for co-operation in particular with a SIM card.
  • PAN Personal Area Network
  • transceivers of this kind are those using the Bluetooth TM technology, whose characteristics are disclosed in IEEE Standard 802.15.1. Those transceivers allow create short range, dynamically varying networks, each capable of communicating with an adjacent network of the same kind to provide a wider coverage. SIM cards equipped with Bluetooth TM transceivers are disclosed for instance in the above-mentioned WO 01/95605 A and WO 99/59360 A .
  • said transceivers exploit the ZigBee TM technology, whose features are disclosed in the homonymous standards and, as far as the physical level of the communication protocol are concerned, also in IEEE Standard 802.15.4.
  • ZigBee TM devices are of particular interest due to their low power consumption and to their capability of self-reconfiguration into an "ad-hoc" network, allowing an indirect information transfer from one network node to another.
  • Another feature of the ZigBee TM technology which is of interest for use of such technology on an integrated circuit card, such as a SIM card or a flash memory card, for a mobile terminal is the possibility of integrating both the analogue transmission part and the whole communication protocol on a same chip.
  • transceivers 4, 5 on SIM card 2 and memory card 3, respectively are ZigBee TM transceivers.
  • transceivers operating at 2.45 GHz are ZigBee TM transceivers.
  • the description will refer to a memory card 3 based on Multimedia Memory Card architecture.
  • the SIM and the MMC equipped with ZigBee TM transceivers will be referred to hereinafter in short as Z-SIM and Z-MMC.
  • Fig. 2 shows a block diagram of Z-SIM 2, in the hypothesis that the same chips as would conventionally be used for non-joint SIM cards and transceivers are still used.
  • the SIM and transceiver functions could also be at least partially integrated on a same ad-hoc chip, when the commercial success of terminals requiring such combined functions justifies so.
  • Z-SIM 2 includes SIM chip 21 performing the standard SIM functions (typically, user identification, security, encryption, preferably also services provided by the operator%), a ZigBee TM transceiver module 22 associated with a radiating element 24, and a finite state machine module 25 (FSM chip) that manages the interoperability of telephone 1 and SIM chip 21 with ZigBee TM transceiver module 22, while guaranteeing the standard communication between SIM chip 21 and telephone 1.
  • SIM chip 21 performing the standard SIM functions (typically, user identification, security, encryption, preferably also services provided by the operator)
  • FSM chip finite state machine module
  • FSM module 25 consists of a logic unit 10 performing the core functions of the FSM, and interfaces 11, 12 and 13 connecting the FSM to the different units among which communication is to be allowed.
  • interfaces 11, 12 connect FSM module 25 with mobile terminal 1 and SIM chip 21, respectively, and guarantee the conventional use of SIM 2 by terminal 1. They may be for instance interfaces compliant to ISO standard 78125.
  • Interface 13 connects FSM module 25 with transceiver module 22, and it can be for instance of the SPI (Serial Peripheral Interface) type. Interfaces 13 and 11 (or 12, respectively) allow FSM module 25 to set up a direct communication between transceiver module 22 and terminal 1 or between transceiver module 22 and SIM chip 21, respectively.
  • SPI Serial Peripheral Interface
  • transceiver 22 The capability of a direct communication between transceiver 22 and SIM chip 21 can be exploited for managing the security issues relating to communications of transceiver module 22, for instance for encryption key exchange. Such a direct connection allows keeping all security functions in SIM chip 21.
  • Core unit 10 manages the communications, through the proper interfaces, between the various units connected to FSM module 25 by assigning different priorities to the different communications, and arbitrates, based on said priorities, concurrent communication requests. More particularly, the maximum priority will be allotted to the communication between telephone 1 and SIM chip 21, that is to the standard operation of telephone 1.
  • Symbols ⁇ , ⁇ , ⁇ denote the links for communication between terminal1 and SIM chip 21, between terminal 1 and transceiver module 22, and between SIM chip 21 and transceiver module 22, respectively.
  • Those links correspond to logical connections set up through the pins of the various chips and the contacts of the SIM card.
  • the three links are allotted respective different priorities, the highest priority being allotted to links ⁇ and the lowest to links ⁇ .
  • terminal 1 Let us consider in particular the communications between terminal 1 and SIM chip 21 upon occurrence of a standard "telephone" event, such as a telephone call or an SMS. If no communication is in progress between SIM chip 21 and transceiver chip 22 or between transceiver chip 22 and terminal 1 when the telephone event occurs, terminal 1 will directly access SIM chip 21 through interfaces 11 and 12. However, transceiver module 22, if it is operating within the PAN, can continue its current operation (for instance, a communication with node 8) and will make available any processing result to terminal 1 as soon as unit 10 will authorise this.
  • a standard "telephone" event such as a telephone call or an SMS.
  • unit 10 will stop it, will "freeze” the corresponding states for later resumption of the communication and will connect terminal 1 and SIM chip 21 as before.
  • terminal 1 is executing an application using transceiver module 22, the same application will postpone the ongoing process.
  • unit 10 will set up the direct connection between terminal 1 and SIM chip 21 and will resume the "frozen" transceiver application when the telephone event has ended.
  • ZigBee TM module 22 is made of two chips 22a, 22b.
  • Chip 22a is a dedicated micro-controller (typically, an 8-16 bit controller) with suitable memories (e.g. RAM and flash memories) through which the whole ZigBee TM protocol stack, from certain functions of MAC level to the application level, is implemented.
  • Chip 22b in turn performs the reception-transmission functions, and includes also the analogue part of the ZigBee TM node.
  • the functions of module 22 can be implemented also by a single chip including the whole protocol stack, from the physical layer to the networking and application functions. Both two-chip and single-chip transceiver modules are commercially available.
  • Examples are components from Chipcon, series CC2X20 for multi-chip systems (e.g. CC2420) together with Atmega AVR 128L microcontroller from Atmel, and series CC2X30 for single chip transceivers.
  • Another commercial component for the transceiver module could be EM2420 from Ember Corporation.
  • the transceiver also comprises a radiating element 24, shown here as a chip antenna.
  • a printed antenna could however also be used.
  • a component suitable for the antenna is component "tiny ANT-2.45-CHP" from Linx Technologies.
  • a suitable firmware in which a server application is implemented must be provided in controller chip 22a (or in the control part of the single transceiver chip).
  • server application is to process authentication requests coming from a client application on transceiver module 5 ( Fig. 1 ) on memory card 3, as it will be described in more detail hereinafter.
  • Fig. 5 is a functional diagram of Z-MMC 3.
  • Multi Media Card 3 may be implemented through a Multi Media Card of the class I/O cards, as defined in MMCA (MMC Association) System specification 3.31. Further details about said specification can be found at the MMCA site www.mmca.org. In the present case, the following modules can be identified:
  • ZigBee TM module 32 comprises separate microcontroller and transceiver chips 32a, 32b, like Z-SIM transceiver module 22 ( Fig. 2 ). Chips 32a, 32b are connected by an SPI interface. Module 32 is connected to MMC interface 31 through a UART interface. Moreover, microcontroller chip 32a embodies the client application 33 ( Fig. 5 ) for the management of Z-MMC 3 by Z-SIM 2.
  • the client application after it has been successfully authenticated via the communication with the server application, will enable Z-MMC operation by making micro-controller 32b activate the chip select (CS) pin of memory interface 36 (if present) or core memory 35.
  • CS chip select
  • the access by terminal 1 to the resources on MMC 3 is controlled. If the client does not pass the authentication step, Z-MMC 3 will be automatically disabled by bringing CS to a deactivation state.
  • the drawing further shows the connections of the different chips to power supply 6 of the host device.
  • the initial phase of the interaction between client and server applications 33, 23 on Z-MMC 3 and Z-SIM 2, respectively, is schematically indicated in Fig. 7 .
  • the drawing shows the protocol stack (physical layer PHY, medium access control layer MAC, network layer and application layer API) for controllers 22a, 32a of both transceiver modules.
  • Server and client applications 23, 33 are located on top the stack. As shown, client 33 will request connection for a certain service to server 23 and, after the server response, the authentication phase will start.
  • Fig. 8 shows a flow chart of the Z-MMC management according to the invention.
  • the start is a boot phase that takes place once Z-MMC 3 has been inserted into terminal 1 (step 100).
  • client 33 Fig. 7
  • Client 33 will attempt the connection to server 23 for a predetermined number of times. If the attempts are unsuccessful, this means that no ZigBee TM service is active on the terminal (output N of step 102), that is, the SIM is not equipped with a ZigBee TM transceiver.
  • Z-MMC will then pass to a lock state (step 103). If on the contrary the connection attempts are successful (output Y of step 102), a logical connection between Z-MMC 3 and Z-SIM 2 is set up by means of the ZigBee TM link (step 104).
  • an authentication phase can take place, in which Z-MMC is recognised by Z-SIM through standard mechanisms, such as the ones provided for node authentication according to the ZigBee TM standard. Note that a mutual authentication of Z-MMC and Z-SIM can be envisaged for a better security of the process. In this case, also client 33 will be provided with the recognition function.
  • step 105 a check is made on whether Z-SIM 2 present in the terminal is validated to configure Z-MMC 3. If the check is successful (output Y of step 105), authentication takes actually place (step 106); otherwise Z-MMC passes to lock state 103, as in the case of failed connection to Z-SIM 2.
  • the process passes to a phase of configuration of Z-MMC by Z-SIM (step 107).
  • the configuration will take place in a secure mode, that is via ciphered communications.
  • Ciphering can be performed for instance by a hardware accelerator included in each transceiver module 22, 32 ( Figs. 2 , 6 ). For such a ciphering, either a symmetric key mechanism or an asymmetric key mechanism can be adopted.
  • Z-MMC 3 and Z-SIM 2 share the same ciphering key.
  • Three sub-cases could be for instance distinguished:
  • public and private keys can be used. More particularly, the public keys are obtained through the mobile network (GSM, GPRS, UMTS, EDGE%) whereas the private keys reside on the cards.
  • Z-SIM being directly connected to the mobile terminal, can get the public key of Z-MMC directly from the network; on the contrary, Z-MMC has to exploit the RF connection with Z-SIM to get the public key of the latter.
  • the relevant communication is not ciphered.
  • the ciphered configuration information is downloaded onto ZigBee TM module 32 of memory card 3.
  • possible options may be as follows:
  • the described management method does not require that Z-SIM 2 and Z-MMC 3 belong to a same terminal, and it can be applied also when Z-SIM and Z-MMC are mounted on different devices.
  • Z-SIM 2' is associated with a first terminal 1', e. g. a cellular phone, and is used to enable and configure a Z-MMC 3" residing on a second terminal 1", for instance a PDA (Personal Digital Assistant).
  • terminal 1" can have access to the identity data stored in the SIM on terminal 1', as disclosed e.g. in WO 99/59360 A mentioned above.
  • the access policy for Z-MMC 3" will be set also in this case by Z-SIM 2', like in the case where both cards are mounted on the same terminal.
  • Figs. 10 and 11 show two possible scenarios of use of a terminal 1 equipped with the described Z-SIM 2 and Z-MMC 3.
  • Reference 7 and 8 denote the mobile communication network to which terminal 1 is connected and a personal area network (ad hoc network) accessible through Z-SIM 2 and/or Z-MMC 3, which form two nodes of network 8.
  • the latter comprises a plurality of further nodes, denoted 8a to 8e in Fig. 10 and 8a to 8f in fig. 11 .
  • ad hoc network 8 can be classified into:
  • Fig. 10 shows a scenario in which Z-SIM 2 uses Z-MMC 3 to expand its operation range and to communicate with the external world.
  • the transmission from Z-SIM uses Z-MMC as a repeater. This allows using Z-SIM 2 for longer-range communication notwithstanding shielding effects of mobile terminal 1, especially in case of terminals in which Z-SIM 2 is located under the battery.
  • the closest node e.g. 8a
  • the closest node e.g. 8a
  • Z-MMC 3 is used as an additional memory for Z-SIM 2, which can directly access ad hoc network 8.
  • Z-SIM 2 can take from Z-MMC 3, by using the ZigBee TM connection, the application program associated to the service requiring access to network 8 and then execute it.
  • Z-SIM 2 and Z-MMC 3 could belong to different terminals.
  • one of the nodes of ad hoc network 8, e. g. node 8e gives access to a further network 9, referred to as distribution network, through which the user can access further services/applications/information, e.g. for firmware update or for synchronisation with remote information available on that network.
  • Network 9 could be a mobile communication network, possibly coinciding with mobile network 7, or be the fixed network. Nodes like node 8e, having gateway functions, will have peculiar processing capacities.
  • the invention allows extending the security area of a Z-SIM to I/O peripheral units of different kinds added to a terminal and equipped with a ZigBee TM module matching that of Z-SIM 2.
  • Examples could be speech synthesis/recognition units, HW accelerators etc.
  • some of those peripheral units might lack core memory 35, and hence memory interface 36, and rely only on the memory of controller 32a. In such case the Z-MMC locking or inhibition of the memory in the absence of a suitable Z-SIM concerns the controller memory and can be performed by the controller software.

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
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EP05744877A 2005-04-29 2005-04-29 Method for the management of a peripheral unit by a sim card in wireless communication terminals, and peripheral unit for implementing the method Not-in-force EP1875757B1 (en)

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PCT/EP2005/004645 WO2006117009A1 (en) 2005-04-29 2005-04-29 Method for the management of a peripheral unit by a sim card in wireless communication terminals, and peripheral unit for implementing the method

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EP1875757A1 EP1875757A1 (en) 2008-01-09
EP1875757B1 true EP1875757B1 (en) 2010-10-27

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US (1) US8265695B2 (zh)
EP (1) EP1875757B1 (zh)
JP (1) JP4885945B2 (zh)
KR (1) KR101121093B1 (zh)
CN (1) CN101199221B (zh)
AT (1) ATE486484T1 (zh)
AU (1) AU2005331488B8 (zh)
BR (1) BRPI0520254B1 (zh)
CA (1) CA2606463C (zh)
DE (1) DE602005024452D1 (zh)
ES (1) ES2355147T3 (zh)
WO (1) WO2006117009A1 (zh)

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ES2355147T3 (es) 2011-03-23
AU2005331488B2 (en) 2011-01-27
ATE486484T1 (de) 2010-11-15
AU2005331488A1 (en) 2006-11-09
KR101121093B1 (ko) 2012-03-15
DE602005024452D1 (de) 2010-12-09
BRPI0520254A2 (pt) 2009-09-15
JP2008539618A (ja) 2008-11-13
KR20080003896A (ko) 2008-01-08
US20090054104A1 (en) 2009-02-26
BRPI0520254B1 (pt) 2018-11-21
CN101199221B (zh) 2013-01-09
WO2006117009A1 (en) 2006-11-09
AU2005331488B8 (en) 2011-03-03
CN101199221A (zh) 2008-06-11
EP1875757A1 (en) 2008-01-09
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CA2606463C (en) 2013-12-31
US8265695B2 (en) 2012-09-11

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